Work vehicle user cabin

Abstract

A work vehicle user cabin is disclosed, comprising a floor and a series of structural pillars including first and second A-pillars, B-pillars, and C-pillars extending upward from the floor. A front window is positioned between the A-pillars, while a front side window is located between the first A-pillar and the first B-pillar. Additionally, a rear side window is situated between the first B-pillar and the first C-pillar. The rear side window features a straight top edge and a distinctive V-shaped bottom edge, with the V-shaped bottom edge formed by forward and rearward straight bottom edge portions joined at an obtuse angle that opens toward the interior of the cabin, enhancing the cabin's structural design and visibility.

Description

[0001] A portion of the disclosure of this patent document contains material that is subject to copyright protection. The copyright owner has no objection to the reproduction of the patent document or the patent disclosure, as it appears in the U.S. Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.FIELD OF THE DISCLOSURE

[0002] The present disclosure relates generally to work vehicles in, e.g., the construction and / or agricultural industries, and more particularly, the present disclosure relates to a work vehicle user's cabin.BACKGROUND

[0003] Traditional work vehicle user cabins have been designed with a focus on structural integrity and basic functionality, often utilizing a straightforward arrangement of pillars and windows. However, these conventional designs can limit the operator's field of view, particularly in areas where the vehicle's structure obstructs sightlines.

[0004] In an effort to improve visibility, some designs have incorporated larger window surfaces or adjusted the positioning of the pillars. For instance, increasing the size of the front and side windows can enhance the operator's ability to see the surrounding environment. Additionally, repositioning the pillars to minimize blind spots has been explored. Despite these modifications, the basic geometric shapes of the windows and the linear arrangement of the pillars have remained largely unchanged, which can still result in areas of limited visibility.

[0005] Existing work vehicle cabins often face limitations in providing a balance between structural integrity, visibility, and comfort. For instance, achieving an optimal viewing angle may compromise cabin reinforcement or result in ergonomic discomfort for operators. Furthermore, advancements in construction technology, such as GPS-enabled grading systems, require cabin designs that can integrate modern control interfaces and accommodate associated equipment without obstructing operator movement or visibility.

[0006] Accordingly, there is a need for an improved work vehicle cabin design that enhances operator safety, visibility, and comfort while supporting the integration of advanced control systems.BRIEF SUMMARY OF THE DISCLOSURE

[0007] The current disclosure provides an improved operator cabin for work vehicles, such as motor graders, designed to enhance visibility, comfort, and structural integrity. More particularly, the present disclosure provides a work vehicle cabin, wherein the cabin includes a floor with a first A-pillar, second A-pillar, first B-pillar, second B-pillar, first C-pillar, and second C-pilar all extending upward from the floor. In some embodiments, a front window is disposed between the first A-pillar and second A-pillar, a front side window is disposed between the first A-pillar and first B-pillar, and a rear side window is disposed between the first B-pillar and the first C-pillar. In certain embodiments, the rear side window includes a straight top edge and V-shaped bottom edge, the V-shaped bottom edge further including forward and rearward straight bottom edge portions that are joined at an obtuse angle opening toward an interior of the cabin.

[0008] In some embodiments, the rear side window includes a planar four-sided window portion extending upward from the forward straight bottom edge portion to the top of the first B-pillar and first C-pillar, and a planar three-sided window portion extending upward from the rearward straight bottom edge portion to the top of the first C-pillar.

[0009] In some embodiments, the planar four-sided window portion is joined to the planar three-sided window portion via a jamb.

[0010] In certain embodiments, the straight top edge of the rear side window is parallel to the forward straight bottom edge portion.

[0011] In some embodiments, the first C-pillar laterally diverges from the second C-pillar.

[0012] In certain embodiments, the work vehicle cabin further includes a roof, wherein the roof is hexagonal, and the floor is octagonal.

[0013] In some embodiments, a footprint of the floor falls entirely within the footprint of the roof.

[0014] In certain embodiments, all six sides of the roof are parallel to respective sides of the floor.

[0015] In some embodiments, the cabin is mounted on a motor grader ahead of a double rear axle tire set of the motor grader, wherein the rear side window provides improved visibility of an area adjacent the double rear axle tire set.

[0016] In certain embodiments, the front window includes a top edge and bottom edge, wherein the top edge is tilted away from the interior of the cabin.

[0017] In some embodiments, the front side window includes a top edge and bottom edge, wherein the top edge is tilted away from the interior of the cabin.

[0018] In certain embodiments, a rear window is disposed between the first C-pillar and the second C-pillar, wherein the rear window includes a top edge and bottom edge, and the top edge is tilted away from the interior of the cabin.

[0019] In certain embodiments, the interior of the cabin includes a swivel seat.

[0020] In some embodiments, the cabin comprises a six-sided roof, an eight-sided floor, left and right A-pillars, left and right B-pillars, left and right C-pillars an outwardly titled front window extending between the left and right A-pillars, an outwardly tilted left front side window extending between the left A-pillar and the left B-pillar, an outwardly tilted right front side window extending between the right A-pillar and the right B-pillar, and a left rear side window extending between the left B-pillar and the left C-pillar, wherein the left side rear window joins two sides of the floor to one side of the roof, the left rear side window includes a forward trapezoidal window pane and a rearward triangular window pane, the forward trapezoidal window pane joining a forward one of the two sides of the floor to the one side of the roof, and the rearward triangular window pane joining a rearward one of the two sides of the floor to the left C-pillar.

[0021] In certain embodiments, the rearward triangular window pane extends all the way to the roof.

[0022] In some embodiments, the forward trapezoidal window pane and the rearward triangular window pane are both tilted outward from the floor.

[0023] In certain embodiments, a right rear side window joins two sides of the floor to one side of the roof, the right rear side window including a forward trapezoidal window pane and a rearward triangular window pane, the forward trapezoidal window pane joining a forward one of the two sides of the floor to the one side of the roof, and the rearward triangular window pane joining a rearward one of the two sides of the floor to the top of the right C-pillar.

[0024] In some embodiments, a footprint of the eight-sided floor falls entirely within a footprint of the six-sided roof.

[0025] In certain embodiments, all six sides of the roof are parallel to respective sides of the floor.

[0026] In some embodiments, the eight sides of the floor include parallel front and rear floor sides, parallel left and right floor sides, and four bevel corner floor sides.

[0027] In certain embodiments, the six sides of the roof include parallel front and rear roof sides, parallel left and right roof sides joined to the rear roof side, and two bevel front corner roof sides.

[0028] In some embodiments, the left C-pillar laterally diverges from the right C-pillar.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiment be considered in all aspects as illustrative and not restrictive. Any headings utilized in the description are for convenience only and no legal or limiting effect. Numerous objects, features, and advantages of the embodiments set forth herein will be readily apparent to those skilled in the art upon reading of the following disclosure when taken in conjunction with the accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG. 1 is a side view representing a motor grader as an exemplary work vehicle incorporating an embodiment of a system as disclosed herein.

[0031] FIG. 2 is a perspective view of a work vehicle cabin of the present disclosure.

[0032] FIG. 3a is a top view of a work vehicle cabin of the present disclosure.

[0033] FIG. 3b is a front view of a work vehicle cabin of the present disclosure.

[0034] FIG. 3c is a side view of a work vehicle cabin of the present disclosure.

[0035] FIG. 3d is a rear view of a work vehicle cabin of the present disclosure.

[0036] FIG. 4 is a schematic plan view of a motor grader to illustrate the line of sight of an operator.DETAILED DESCRIPTION

[0037] Reference will now be made in detail to embodiments of the present disclosure, one or more drawings of which are set forth herein. Each drawing is provided by way of an explanation of the present disclosure and is not a limitation. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made to the teachings of the present disclosure without departing from the scope of the disclosure. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment.

[0038] Thus, it is intended that the present disclosure covers such modifications and variations as come within the scope of the appended claims and their equivalents. Other objects, features, and aspects of the present disclosure are disclosed in, or are obvious from, the following detailed description. It is to be understood by one of ordinary skill in the art that the present discussion is a description of exemplary embodiments only and is not intended as limiting the broader aspects of the present disclosure.

[0039] As shown in FIG. 1, the motor grader 100 includes front frame 102 and rear frame 104, with the front frame 102 being supported on a pair of front wheels 106 that are mounted on a front axle 107, and with the rear frame 104 being supported on right and left tandem sets of rear wheels 108. A straight line extending between the wheel centers generally defines a wheel axis transverse to a longitudinal plane of the vehicle 100 and generally parallel to wheel treads in contact with the surface being graded. In one or more embodiments, the front frame 102 and rear frame 104 are fixedly coupled together. In still other embodiment, the front frame 102 and rear frame 104 are moveable with respect to one another such that the front frame 102 and rear frame 104 articulate with respect to one another. Articulation of the vehicle during a grading operation is also known as “crabbing”.

[0040] An operator cabin 110 is mounted on an upwardly and inclined rear region 112 of the front frame 102 and contains various controls for the motor grader 100 disposed so as to be within the reach of a seated or standing operator. In one aspect, these controls may include a steering wheel 114 and a lever assembly 116. A user interface 117 is supported by a console located in the cabin and includes one or more different types of operator controls including manual and electronic buttons of switches. In different embodiments, the user interface 117 includes a visual display providing operator selectable menus for controlling various features of the vehicle 100. In one or more embodiments, a video display is provided to show images provided by an image sensor 148 or cameras located on the vehicle.

[0041] An engine 118 is mounted on the rear frame 104 and supplies power for all driven components of the motor grader 100. The engine 118, for example, is configured to drive a transmission (not shown), which is coupled to drive the rear wheels 108 at various selected speeds and either in forward or reverse modes. A hydrostatic front wheel assist transmission (not shown), in different embodiments, is selectively engaged to power the front wheels 106, in a manner known in the art.

[0042] A ripper 152 may be mounted to the rear frame 104. The ripper 152 may, for example, be bolted or welded to the rear frame 104 and may further utilize pre-designed attachment points (not shown). Hydraulic cylinders (not shown) are connected to the ripper 152, allowing the operator to raise, lower, or adjusted the depth of ripper teeth 154. The ripper teeth 154, alternatively called shanks, are inserted into the frame of the ripper 152 and may be utilized for breaking up compacted soil or rock during operation.

[0043] Mounted to a front location of the front frame 102 is a drawbar or draft frame 120, having a forward end universally connected to the front frame 102 by a ball and socket arrangement 122 and having opposite right and left rear regions suspended from an elevated central section 124 of the front frame 102. Right and left lift linkage arrangements including right and left extensible and retractable hydraulic actuators 126 and 128, respectively, support the left and right regions of the drawbar 120. The right and left lift linkage arrangements 126 and 128 either raise or lower the drawbar 120. A side shift linkage arrangement is coupled between the elevated frame section 124 and a rear location of the drawbar 120 and includes an extensible and retractable side swing hydraulic actuator 130. A blade or moldboard 132 is coupled to the front frame 102 and powered by a circle drive assembly 134. The blade 132 includes an edge 133 configured to cut, separate, or move material. While a blade 132 is described herein, other types of implements are contemplated.

[0044] The drawbar 120 is raised or lowered by the right and left lift linkage arrangements 126 and 128 which in turn raises or lowers the blade 132 with respect to the surface. The actuator 130 raises or lowers one end of the blade 132 to adjust the slope of the blade.

[0045] The circle drive assembly 134 includes a rotation sensor 136, which in different embodiments, includes one or more switches that detect movement, speed, or position of the blade 132 with respect to the vehicle front frame 102. The rotation sensor 136 is electrically coupled to a controller 138, which in one embodiment is located in the cabin 110. In other embodiments, the controller 138 is located in the front frame 102, the rear frame 104, or within an engine compartment housing the engine 118. In still other embodiments, the controller 138 is a distributed controller having separate individual controllers distributed at different locations on the vehicle. In addition, while the controller is generally hardwired by electrical wiring or cabling to sensors and other related components, in other embodiments the controller includes a wireless transmitter and / or receiver to communicate with a controlled or sensing component or device which either provides information to the controller or transmits controller information to controlled devices.

[0046] A blade slope / position sensor 140 is configured to detect the slope and / or position of the blade 132 and to provide slope and / or position information to the controller 138. In different embodiments, the blade slope / position sensor 140 is coupled to a support frame for the blade 132 of the hydraulic actuator 130 to provide the slope information. A mainfall sensor 142 is configured to detect the grading angle of the vehicle 100 with respect to gravity and to provide grading angle information to the controller 138. The mainfall sensor 142 is configured to measure one or more of angles of slope, tilt, elevation, or depression with respect to gravity. In one embodiment, the mainfall sensor 142 includes an inertial measurement unit (IMU) configured to determine a roll position and a pitch position with respect to gravity. In other embodiments, the mainfall sensor includes other inclination measuring devices for measuring an angle of the vehicle, such as an inclinometer. The mainfall sensor 142 provides a signal including roll and pitch information of the straightline axis between wheel centers and consequently roll and pitch information of the vehicle 100. The roll and pitch information is used by an electronic control unit (“ECU”) to adjust the position of the blade 132.

[0047] In other embodiments, the vehicle 100 includes angle sensors at both the front frame 102 and the rear frame 104 to determine the position of the front frame 102 with respect to the rear frame 104 during articulation. In these embodiments, grade control is achieved using one or more of implement position, front frame position, and rear frame position.

[0048] An antenna 144 is located at a top portion of the cabin 110 and is configured to receive signals from different types of machine control systems including sonic systems, laser systems, and global positioning systems (GPS). While the antenna 144 is illustrated, other locations of the antenna 144 are included as is known by those skilled in the art. For instance, when the vehicle 100 is using a sonic system, a sonic tracker 146 is used to detect reflected sound waves transmitted by the sonic system with the sonic tracker 146. In a vehicle 100 using a laser system, a mast (not shown) located on the blade supports a laser tracker located at a distance above the blade 132. In one embodiment, the mast includes a length to support a laser tracker at a height similar to the height of a roof of the cabin. A GPS system includes a GPS tracker located on a mast similar to that provided for the laser tracker system. Consequently, the present disclosure applies vehicle motor grader systems using both relatively “simple” 2D cross slope systems and to “high end” 3D grade control systems.

[0049] In additional embodiments, the grade control system includes devices, apparatus, or systems configured to determine the mainfall of the vehicle, as well as devices, apparatus, or systems configured to determine the slope and / or the position of the blade. For instance, blade position is determined by one or more sensors. In one embodiment, an inertial measurement unit is used to determine blade position. Consequently, other systems to determine mainfall and blade slope / position are contemplated.

[0050] A ground image sensor 148 is fixedly mounted to the cabin 110 at a location generally unobstructed by any part of the vehicle 100. The ground image sensor 148 includes one or more of a transmitter, receiver, or a transceiver directed to the ground rearward of and being approached by the vehicle 100 when the vehicle 100 is traveling in a rearward or forward direction as indicated by path 198. In different embodiments, the ground image sensor 148 includes one or more of a two dimensional camera, a radar device, and a laser scanning device, and a light detection and ranging (LIDAR) scanner. The ground image sensor 148 is configured to provide an image of the ground and any surface irregularities being approached which is transmitted to the ECU. In different embodiments, the ground image sensor 148 is one of a grayscale sensor, a color sensor, or a combination thereof.

[0051] FIG. 2 is a depiction of an embodiment of a work vehicle cabin 110. The base of the cabin 110 comprises a floor 200, and the floor 200 may be eight-sided or octagonal. Furthermore, the floor 200 may be a regular octagon—comprising equal sides and angles—or an irregular octagon—comprising unequal sides and unequal angles. This octagonal shape may offer improved stability and spatial efficiency compared to traditional cabin designs. In certain embodiments, the eight sides of the floor may include parallel front and rear floor sides, parallel left and right floor sides, and four bevel corner floor sides.

[0052] Extending from the floor 200 are a variety of pillars. In this embodiment, two A-pillars 202 may be disposed of at the front corners of the cabin and extend upward from the floor 200. The two A-pillars 202 may include a left A-pillar 202a and a right A-pillar 202b. Furthermore, two A-pillars 202 may include an outward inclination or tilt away from the interior of the cabin so that the tops of the two A-pillars 202 extend beyond the footprint of the floor 200. The footprint of the floor 200 may refer to the area or boundary of the floor 200 of the cabin 110 as seen from a top-down or overhead view and represents the outline or projection of the floor's surface area.

[0053] Additionally, a front window 208 may be framed or disposed of between the left A-pillar 202a and right A-pillar 202b. The front window 208 may be rectangular in shape and include a top edge and bottom edge. As the two A-pillars 202 may be pitched away from the interior cabin, the top edge of the front window 208 may also include an outward inclination or tilt away from the interior of the cabin. This outward inclination or tilt of the front window 208 may reduce glare and offer improved visibility for the operator.

[0054] Furthermore, two B-pillars 204 may be positioned further back from the two A-pillars 202 and include a left B-pillar 204a and a right B-pillar 204b. The two B-pillars 204 extend upward from the floor 200 at the two corners of the floor 200 behind the two A-pillars 202. In other words, the left B-pillar 204a is disposed of on the corner of the floor 200 behind left A-pillar 202a, and the right B-pillar 204b is disposed of on the corner of the floor 200 behind right A-pillar 202b. The two B-pillars 204 may include an outward inclination or tilt away from the interior of the cabin so that the tops of the two B-pillars 204 may extend beyond the footprint of the floor 200. Like the two A-pillars 202, the outward inclination or tilt of the two B-pillars 204 may further help ensure support of structural components, enhance stability, and provide a more spacious interior environment.

[0055] A front side window 210 may be disposed of between the left A-pillar 202a and the left B-pillar 204a. Additionally or alternatively, the front side window 210 may be disposed of between the right A-pillar 202b and the right B-pillar 204b. The front side window 210 may be rectangular in shape, and may also include a top edge and a bottom edge. The top edge of the front side window 210 may be outwardly inclined or titled away from the interior of the cabin. Such outward incline or tilt of the front side window 210 may aid in reducing water accumulation or dirt adherence to the cabin 110 during operation, as well as enhancing external visibility.

[0056] Additionally, the front side window 210 may function as a point of ingress and egress to and from the cabin—i.e. a door. In such an embodiment, the front side window 210 may be connected to one of the two A-pillars 202 or one of the two B-pillars 204 via hinges, allowing for the opening and closing of the front side window 210. Additionally, the front side window 210 may include a handle on the interior cabin side of the front side window 210 and a handle on the exterior cabin side of the front side window 210.

[0057] In addition to two A-pillars 202 and two B-pillars 204, the cabin 110 may also include two C-pillars 206. The two C-pillars 206 further comprise a left C-pillar 206a and a right C-pillar 206b. The two C-pillars 206 are disposed of at the rear two corners of the floor 200, with the two C-pillars 206 extending upward from floor 200. As the two C-pillars 206 extend upward, they may laterally diverge so that the tops of the left C-pillar 206a and the right C-pillar 206b are further apart than the bottoms of the left C-pillar 206a and the right C-pillar 206b. Furthermore, the two C-pillars 206 may include an outward inclination or tilt away from the interior of the cabin so that the tops of the two C-pillars 206 may extend beyond the footprint of the floor 200.

[0058] A rear window 224 may be framed or disposed of between the left C-pillar 206a and the right C-pillar 206b. The rear window 224 may be trapezoidal in shape and may also include a top edge and a bottom edge. The top edge of the rear window 224 may be outwardly inclined or titled away from the interior of the cabin. Such outward incline or tilt of the rear window 224 may aid in reducing water accumulation or dirt adherence to the cabin 110 during operation, as well as enhancing external visibility.

[0059] A rear side window 212 may be disposed of between the left B-pillar 204a and the left C-pillar 206a. Additionally or alternatively, a rear side window 212 may be disposed of between the right B-pillar 204b and the right C-pillar 206b. The rear side window 212 further includes a straight top edge portion 214 and a V-shaped bottom edge 216. The V-shaped bottom edge 216 includes a forward straight bottom edge portion 218 and a rearward straight bottom edge portion 220, with the forward straight bottom edge portion 218 and the rearward straight bottom edge portion 220 joined at an obtuse angle opening toward the interior of the cabin 110. This V-shaped bottom edge 216 joins two sides of the floor 200 to one side of the roof 302. Additionally, the rear side window 212 may be outwardly inclined or titled away from the interior of the cabin.

[0060] The rear side window 212 may further include two individual panes. One pane may be a planar four-sided window portion 226 that extends upwards from the forward straight bottom edge portion 218. This four-sided window portion 226 may be trapezoidal in shape, and the straight top edge portion 214 may be parallel to the forward straight bottom edge portion 218. Additionally, the straight top edge portion 214 of the planar four-sided window portion 226 may be disposed of between one of the two B-pillars 204 and one of the two C-pillars 206, such that if the rear side window 212 is disposed of on the left side of the cabin 110, the top edge portion of the planar four-sided window portion 226 will be disposed of between the left B-pillar 204a to the left C-pillar 206a. Similarly, if the rear side window 212 is disposed of on the right side of the cabin 110, the top edge portion of the planar four-sided window portion 226 will be disposed of between the right B-pillar 204b and the right C-pillar 206b.

[0061] The second pane of the rear side window 212 may be a planar three-sided window portion 228 that extends upwards from the rearward straight bottom edge portion 220. This planar three-sided window portion 228, being triangular in shape, extends from the rearward straight bottom edge portion 220 upward to the top of one of the two C-pillars 206 and / or roof, such that if the rear side window 212 is disposed of on the left side of the cabin 110, the top portion of the planar three-sided window portion 228 is disposed of at the top of left C-pillar 206a and / or roof. Similarly, if the rear side window 212 is disposed of on the right side of the cabin 110, the top edge portion of the planar three-sided window portion 228 will be disposed of at the top of the right C-pillar 206b and / or roof.

[0062] Where the planar four-sided window portion 226 and the planar three-sided window portion 228 meet, the two window portions may be joined together using a combination of adhesives, mechanical fasteners, and / or structural jambs 230. The joining method may ensure a secure fit between adjacent panes while maintaining the structural integrity, aesthetic appeal, and increased visibility of the operator.

[0063] In certain embodiments, the method of joining may involve the use of high-performance adhesives, such as silicone or polyurethane-based sealants, providing a strong and durable bond between the planar four-sided window portion 226 and the planar three-sided window portion 228. These adhesives may be applied along the edge(s) of the window panes to create an airtight and watertight seal, preventing moisture, dust, and other contaminants from entering the cabin. Adhesive bonding may also allow for a seamless appearance and reduce the need for visible hardware.

[0064] In some embodiments, the planar four-sided window portion 226 and the planar three-sided window portion 228 window panes may be joined using structural jambs 230 that provide both mechanical support and alignment. The jambs 230, which may be constructed from materials such as aluminum, steel, or reinforced plastic, may be configured to receive the edges of the window panes, securely holding them in place. The jambs 230 may include integrated channels or grooves lined with gaskets or weatherstripping to further enhance the seal and minimize vibrations. This method of joining may ensure a strong physical connection but may also allow for easier replacement of individual panes if damage occurs.

[0065] In certain embodiments, a combination of adhesives and jambs may be employed to maximize both the strength and flexibility of the joint. For example, adhesive sealants can provide additional reinforcement to mechanically secured panes, reducing the risk of loosening under operational stresses or extreme weather conditions. Additionally, the junctions between the panes may be covered with an aesthetic trim or molding to conceal the joining elements and enhance the overall cabin design.

[0066] FIG. 3a-d are views of a work vehicle cabin of the present disclosure. As outlined in FIG. 3a the cabin 110 may further include a roof 302. The roof 302 may be six-sided or hexagonal. Furthermore, the roof 302 may be shaped as a regular hexagon—comprising equal sides and angles—or an irregular hexagon—comprising unequal sides and unequal angles. This hexagonal shape may offer improved stability and spatial efficiency compared to traditional cabin designs. In some embodiments, the six sides of the roof may include parallel front and rear roof sides 304, parallel left and right roof sides 306, joined to the rear roof side, and two bevel front corner roof sides 308.

[0067] The roof 302 of the cabin 110 may be structurally supported and secured to the tops of the two A-pillars 202, the two B-pillars 204, and the two C-pillars 206. In some embodiments, the footprint of the floor may fall entirely within the footprint of the roof. Additionally, in certain embodiments, all six sides of the hexagonal roof 302 may be parallel to the respective sides of the floor 200. For example, the side of the roof 302 between the left A-pillar 202a and the right A-pillar 202b may be parallel to the side of the floor 200 between the left A-pillar 202a and the right A-pillar 202b. Similarly, the side of the roof 302 between the left A-pillar 202a and the left B-pillar 204a may be parallel to the side of the floor 200 between the left A-pillar 202a and left B-pillar 204a. Furthermore, the side of the roof 302 between the right A-pillar 202b and the right B-pillar 204b may be parallel to the side of the floor 200 between the right A-pillar 202b and right B-pillar 204b. Moreover, the side of the roof 302 between the left B-pillar 204a and the left C-pillar 206a may be parallel to side of the floor 200 where the forward straight bottom edge portion 218 is disposed between the left B-pillar 204a and the left C-pillar 206a. Similarly, the side of the roof 302 between the right B-pillar 204b and the right C-pillar 206b may be parallel to the side of the floor 200 where the forward straight bottom edge portion 218 is disposed between the right B-pillar 204b and the right C-pillar 206b. Finally, the side of the roof 302 between the left C-pillar 206a and the right C-pillar 206b may be parallel to the side of the floor 200 between the left C-pillar 206a and the right C-pillar 206b. This design may provide additional space within the interior of the cabin, allowing for more comfort and efficiency for the operator. Additionally, the increased space within the interior of the cabin may also allow for the operator to have better visibility of the work machine and surrounding areas.

[0068] In some embodiments, the roof 302 is designed to provide both protective coverage and structural integrity to the cabin. Each of the pillars—A-pillars 202, B-pillars 204, and C-pillars 206—may feature attachment points at their top ends, which are configured to align with corresponding mounting locations on the roof 302 (not shown). These attachment points may include pre-drilled holes, brackets, or integrated flanges to facilitate secure connections.

[0069] In certain embodiments, the roof 302 may be fastened using mechanical means such as bolts, screws, or rivets, ensuring a robust and durable connection capable of withstanding environmental forces, such as wind, vibrations, and impacts. The roof's edges may also be contoured to match the angular arrangement of the pillars, ensuring a snug fit and enhancing the overall aerodynamic profile of the cabin.

[0070] Alternatively, the roof 302 may be attached using welding techniques, creating a seamless and permanent bond with the tops of the pillars. In cases where removability is desired, quick-release clamps or latches may be employed, allowing the roof to be detached for maintenance, replacement, or transportation purposes.

[0071] For added stability, reinforcement plates or gussets may be installed at the connection points between the roof 302 and the pillars. These reinforcements may help distribute loads evenly across the structure, minimizing stress on individual components. Additionally, sealing materials, such as rubber gaskets or silicone, may be applied along the interfaces to prevent water ingress and reduce noise caused by vibrations during operation.

[0072] In certain embodiments, the roof 302 may also include integrated channels or rails for mounting auxiliary equipment, such as lighting, cameras, or ventilation systems. These features may further enhance the roof's utility while maintaining its functions of providing shelter and structural support to the cabin.

[0073] In an embodiment, the cabin 110 may include a swivel seat 222. The inclusion of a swivel seat 222 may be possible, in part, due to the increased cabin interior space provided by the present cabin design The swivel seat 222 may be positioned centrally within the cabin's interior. Additionally, the swivel seat 222 may include a rotational or swivel base, allowing the swivel seat 222 to rotate around a vertical axis. The swivel seat 222 may allow the operator to rotate between zero degrees and twenty degrees in either the left or right direction. Alternatively, the swivel seat 222 may permit the operator to rotate or swivel in both left and right directions. The swivel seat 222 may provide the operator with enhanced mobility and ease of access to controls, tools, and viewing angles within the cabin. The rotational or swivel capability of the swivel seat 222 may be particularly advantageous in work vehicles that require multi-directional operation or viewing angles, where the operator must frequently shift their attention between forward-facing tasks and peripheral or rear operations.

[0074] The swivel seat 222 may include adjustable locking mechanisms to secure the seat in desired rotational positions, ensuring stability during vehicle movement or specific operational tasks. Additionally, ergonomic enhancements, such as adjustable height, lumbar support, and armrests, may be integrated into the swivel seat 222 to promote operator comfort and reduce fatigue during use. In some embodiments, the seat may also include vibration-dampening materials or mechanisms to mitigate the effects of uneven terrain or machinery vibrations. These vibration-dampening materials may contribute to an improved working environment. The swivel seat 222 may further complement the cabin's spacious floor 200 design, allowing for unimpeded rotation and operator efficiency within the interior of the cabin.

[0075] FIG. 4 is a depiction of a motor grader to illustrate the line of sight of an operator. As the two A-pillars 202 are disposed of at the two front corners of the floor 200, the operator may have a direct view 402 of the front of the work vehicle through the front window 208. Additionally, the cabin 110 design as described may permit an unobstructed forward diagonal view 404, including a forward left diagonal view 404a and a forward right diagonal view 404b. This unobstructed forward diagonal view 404 permits an operator to view the work vehicle 100 and the work vehicle's surroundings through the front side window 210. For example, through the front side window 210 the operator may be able to view the blade 132 of the work vehicle 100.

[0076] Additionally, the rear side window 212 may permit the operator to have an unobstructed left or right view 406. By positioning the rear side window 212 to the side of the operator, the operator has a left or right view 406 that permits viewing of the work vehicle 100 and work vehicle surroundings. For example, the left or right view 406 may permit the operator to view the tandem sets of rear wheels 108, areas adjacent the tandem sets of rear wheels 108, or in the instance of a four-way stop, the operator may be able to observe traffic approaching from the left or right side of the work vehicle 100.

[0077] Furthermore, the rear side window 212 may permit the operator to have a rearward view 408, which further includes a left rearward view 408a and a right rearward view 408b. The operator, with or without the aid of the swivel seat 222, may observe portions of the rear frame 104 through the rearward view 408, which passes through the planar three-sided window portion 228. For instance, when an operator is focused on the rearward view 408, the operator may observe portions of the ripper 152.

[0078] Terms such as “a,”“an,” and “the” are not intended to refer to only a singular entity, but rather include the general class of which a specific example may be used for illustration.

[0079] References in the specification to “one embodiment,”“an embodiment,”“an example embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments, whether explicitly described.

[0080] As used herein, the phrases “one or more,”“at least one,”“at least one of,” and “one or more of,” or variations thereof, when used with a list of items, means that different combinations of one or more of the items may be used and only one of each item in the list may be needed. For example, “one or more of” item A, item B, and item C may include, for example, without limitation, item A or item A and item B. This example also may include item A, item B, and item C, or item B and item C.

[0081] Conditional language used herein, such as, among others, “can,”“might,”“may,”“e.g.,” and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements, and / or states. The conditional language is not generally intended to imply that features, elements and / or states are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without author input or prompting, whether these features, elements and / or states are included or are to be performed in any particular embodiment. Thus, such conditional language is not generally intended to imply that features, elements, and / or states are in any way required for one or more embodiments, whether these features, elements, and / or states are included or are to be performed in any particular embodiment.

[0082] The previous detailed description has been provided for the purposes of illustration and description. Thus, although there have been described particular embodiments of a new and useful invention, it is not intended that such references be construed as limitations upon the scope of this disclosure except as set forth in the following claims. Thus, it is seen that the apparatus of the present disclosure readily achieves the ends and advantages mentioned as well as those inherent therein. While certain preferred embodiments of the disclosure have been illustrated and described for present purposes, numerous changes in the arrangement and construction of parts and steps may be made by those skilled in the art, which changes are encompassed within the scope and spirit of the present disclosure as defined by the appended claims.

[0083] Although there have been described particular embodiments of the present invention of a new and useful liquid dispensing top feeder, it is not intended that such references be construed as limitations upon the scope of this invention except as set forth in the following claims

[0084] Thus, it is seen that the apparatus and methods of the present disclosure readily achieve the ends and advantages mentioned as well as those inherent therein. While certain preferred embodiments of the disclosure have been illustrated and described for present purposes, numerous changes in the arrangement and construction of parts and steps may be made by those skilled in the art, which changes are encompassed within the scope and spirit of the present disclosure as defined by the appended claims. Each disclosed feature or embodiment may be combined with any of the other disclosed features or embodiments.

Claims

1. A work vehicle user cabin comprising:a floor;a first A-pillar and a second A-pillar extending upward from the floor;a front window disposed between the first A-pillar and the second A-pillar;a first B-pillar and a second B-pillar extending upward from the floor;a front side window disposed between the first A-pillar and the first B-pillar;a first C-pillar and a second C-pillar extending upward from the floor;a rear side window disposed between the first B-pillar and the first C-pillar; andthe rear side window including a straight top edge and V-shaped bottom edge, the V-shaped bottom edge including forward and rearward straight bottom edge portions joined at an obtuse angle opening toward an interior of the cabin.

2. The work vehicle user cabin of claim 1, wherein the rear side window further includes a planar four-sided window portion extending upward from the forward straight bottom edge portion to the top of the first B-pillar and first C-pillar, and a planar three-sided window portion extending upward from the rearward straight bottom edge portion to the top of the first C-pillar.

3. The work vehicle user cabin of claim 2, wherein the planar four-sided window portion is joined to the planar three-sided window portion via a jamb.

4. The work vehicle user cabin of claim 1, wherein the straight top edge of the rear side window is parallel to the forward straight bottom edge portion.

5. The work vehicle user cabin of claim 1, wherein the first C-pillar laterally diverges from the second C-pillar.

6. The work vehicle user cabin of claim 1, further comprising a roof, wherein the floor is octagonal, and the roof is hexagonal.

7. The work vehicle user cabin of claim 6, wherein a footprint of the floor falls entirely within a footprint of the roof.

8. The work vehicle user cabin of claim 6, wherein all six sides of the roof are parallel to respective sides of the floor.

9. The work vehicle user cabin of claim 1, mounted on a motor grader ahead of a double rear axle tire set of the motor grader, wherein the rear side window provides improved visibility of an area adjacent the double rear axle tire set.

10. The work vehicle user cabin of claim 1, wherein the front window includes a top edge and bottom edge, the top edge being tilted away from the interior of the cabin.

11. The work vehicle user cabin of claim 1, wherein the front side window includes a top edge and bottom edge, the top edge being tilted away from the interior of the cabin.

12. The work vehicle user cabin of claim 1, further comprising a rear window disposed between the first C-pillar and the second C-pillar, wherein the rear window includes a top edge and bottom edge, the top edge being tilted away from the interior of the cabin.

13. The work vehicle user cabin of claim 1, the interior of the cabin including a swivel seat.

14. A work vehicle user cabin, comprising:a six-sided roof;an eight-sided floor;left and right A-pillars joining the roof to the floor;left and right B-pillars joining the roof to the floor;left and right C-pillars joining the roof to the floor;an outwardly tilted front window extending between the left and right A-pillars;an outwardly tilted left front side window extending between the left A-pillar and the left B-pillar;an outwardly tilted right front side window extending between the right A-pillar and the right B-pillar; anda left rear side window extending between the left B-pillar and the left C-pillar, the left side rear window joining two sides of the floor to one side of the roof, the left rear side window including a forward trapezoidal window pane and a rearward triangular window pane, the forward trapezoidal window pane joining a forward one of the two sides of the floor to the one side of the roof, and the rearward triangular window pane joining a rearward one of the two sides of the floor to the left C-pillar.

15. The work vehicle user cabin of claim 14, wherein the forward trapezoidal window pane and the rearward triangular window pane are both tilted outward from the floor.

16. The work vehicle user cabin of claim 14, further comprising a right rear side window joining two sides of the floor to one side of the roof, the right rear side window including a forward trapezoidal window pane and a rearward triangular window pane, the forward trapezoidal window pane joining a forward one of the two sides of the floor to the one side of the roof, and the rearward triangular window pane joining a rearward one of the two sides of the floor to the top of the right C-pillar.

17. The work vehicle user cabin of claim 14, wherein a footprint of the eight-sided floor falls entirely within a footprint of the six-sided roof.

18. The work vehicle user cabin of claim 14, wherein all six sides of the roof are parallel to respective sides of the floor.

19. The work vehicle user cabin of claim 14, wherein the eight sides of the floor include parallel front and rear floor sides, parallel left and right floor sides, and four bevel corner floor sides.

20. The work vehicle user cabin of claim 19, wherein the six sides of the roof include parallel front and rear roof sides, parallel left and right roof sides joined to the rear roof side, and two bevel front corner roof sides.

Images